Improvement in saw-hanging



' naar slaag parte eine.

LAWRENCE MORRISON AND AMos c. nAEMs, A0E ALLEGHENY CITY, PENNSYLVANIA.

Leners Patent No. 101,492, amd Apr-@'15, 1870.

IMPROVEMENT IN SAW-HANGING.

The Schedule referred to in these Letters Patentvand making parl: of thesame.

To all whom it muy concern:

Be it known that we, LAWRENCE Monnisox and AMOS G. HARMS, of AlleghenyCity, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement in Saw Pitman-Head; and we dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawingsforming part of this specification.

This invention relates to muley-saw hangings, and

-consists in an improvement which will he specified hereinafter.

In the accompanying drawing- Figure 1 js a sectional side View of thearrangement, showing a portion of the saw and of the pitman.

Figure 2 is a front view of the same, also'partly in section. Y

Similar letters of reference indicate corresponding parts.

A represents the pitman-head.

B B are the pitinan-head wrst-pins.

These pins are attached to the inner jaws C C, but they pass throughslots in the outer jaws, so that they are allowed to move up or downwhen the adj nstment is made.

The slot in one of the outside jaws is seen at D, iig. 2.

E is the adjusting-screw, which is provided with nuts F F, between whichnuts the bow of the jaws C C is placed, as sccn in the drawing.

By the adjustment, which may be made by means of the screw and nuts, thesaw may be given more or less of au oscillating motion, as may bedesired.

G is the saw-buckle, the lower portion of which is made open, andprovided with a gib, H, and key I, as

.seen in fig. l.

By making the lower end of the buckle open in this manner, it will beseen that the saw may be removed from the pitman -head withoutdisconnecting the buckle.

The inner jaws C are slotted, as seen at J, so that the vwrist-pins ofthe pitman-head may be adjusted without disturbing the saw-bucklewrist-pin K.

By these improvements, the action of the sawl(as f scribed.

L. MORRISON. A. G. HARMS.

\Vitnesses:

M. C. BRYANT, A. M. CALLUM.

